北方岩溶区断裂带水文地质性质及结构模型  

Hydrogeological structure model of the fault zone in the karst area of north China

作　　者：刘元晴 周乐[3] 王新峰[3] 吕琳[3] 路小慧[1,2] 于开宁 张伟峰 LIU Yuanqing;ZHOU Le;WANG Xinfeng;LV Lin;LU Xiaohui;YU Kaining;ZHANG Weifeng(Shandong Lunan Geological Engineering Survey Institute(Shandong Provincial Bureau of Geology and MineralResources No.2 Geological Brigade),Jining,Shandong 272100,China;Shandong Provincial Engineering Research Center of Geothermal Energy Exploration and Development,Jining,Shandong 272100,China;Center for Hydrogeology and Environmental Geology Survey,CGS,Baoding,Hebei 071051,China;Hebei Center for Ecological and Environmental Geology Research,Hebei GEO University,Shijiazhuang,Hebei 050031,China;No.1 Institute of Geology and Mineral Resources of Shandong Province,Jinan,Shandong 250014,China)

机构地区：[1]山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队),山东济宁272100 [2]山东省地热清洁能源勘查开发工程研究中心,山东济宁272100 [3]中国地质调查局水文地质环境地质调查中心,河北保定071051 [4]河北地质大学河北省高校生态环境地质应用技术研发中心,河北石家庄050031 [5]山东省第一地质矿产勘查院,山东济南250014

出　　处：《中国岩溶》2022年第6期975-985,共11页Carsologica Sinica

基　　金：山东省中央引导地方科技发展资金项目(YDZX20203700002937);河北省高校生态环境地质应用技术研发中心开放课题(JSYF-202101);中国地质调查局地质调查项目(DD2022175403)。

摘　　要：断层带结构和内部流体流动特性是水文地质研究领域的难点问题。石油地质领域,在油气运移与成藏方向已形成较成熟的断层封闭性定量评价技术手段。相比较,断裂的水文地质性质研究尚停留在断裂的力学性质对断层导水、阻水特性的定性评价阶段,尚未详细开展断裂带结构、渗透性各向异性等方面的研究工作。文章梳理总结国外断裂带水文地质性质研究中关于结构组成、断裂带演化、渗透率影响因素等方面的研究成果,引入断裂带渗透率结构模型,并以中国北方岩溶区碳酸盐岩与碎屑岩互层含水岩组为例,构建断裂带水文地质结构模型。断裂带研究尺度和精度不同、断裂带发育部位不同,导致其结构及水文地质性质亦不相同,如何建立起精确、典型的断裂带水文地质结构模型,需要各领域数据共享及多学科融合共同开展研究工作。The fault zone has a controlling effect on the mechanical properties and fluid flow characteristics of the crust.It is an extensively distributed and very important structural pattern in the upper crust,and widely participates in the crustal activity process.At present,the structural composition and fluid flow pattern of fault zones are hot and difficult points in foreign research,and the research methods and understandings are different in various fields.In the field of petroleum geology,mature quantitative evaluation techniques for fault sealing have been developed in hydrocarbon migration and accumulation.In contrast,research of hydrogeological properties of faults is still in the stage of qualitative evaluation of mechanical properties on the water conductivity or water resistance of faults.Studies on fault zone structure,permeability anisotropy and other aspects have not yet been carried out.At present,many scholars and teams at home and abroad have done much meaningful research and discussion on the internal structure characteristics of the fault zone and its influence on fluid flow.This paper summarizes the results of foreign studies on the hydrogeological properties of fault zones in terms of structural composition,fault zone evolution,permeability factors,etc.The hydrogeological structure model of the fault zone in the northern part of the Taihang Mountains is introduced by taking the fault that is developed in the carbonates of the Cambrian Zhangxia formation with clastic water-bearing rocks as an example.In previous studies on the composition and permeability structure of fault zone,its composition is divided into fault core and fracture zone.The structure of fault core and fracture zone determines the heterogeneity and anisotropy of permeability structure of fault zone.In the fault zone,the thickness ratio between fault core and fracture zone provides a convenient and generalized framework for describing the hydrogeological characteristics of fault zone.If the permeability of each component of the fau

关 键 词：水文地质 断层核 破裂带 渗透率 岩溶山区 

分 类 号：P641.1[天文地球—地质矿产勘探]